A linear motor can be considered as a rotary motor that is cut along its radial plane and unfolded. The resulting linear servo motor is an electromagnetic direct-drive linear motor that can generate linear motion without contact between components, eliminating issues such as backlash, winding, wear, and maintenance requirements. Linear motion does not require pneumatic or hydraulic cylinders, nor does it need gearboxes, spindles, belts, racks and pinions, or screws to convert rotational motion into linear motion.
Linear motors are currently used in robots, actuators, precision stages/tables, fiber optic and photonics alignment and positioning, assembly, pick-and-place systems, machine tools, semiconductor equipment, electronic manufacturing, inspection systems requiring high-bandwidth response control, vision systems, and many other industrial motion control applications.
【Toyo Robotics】produces a large number of linear motors and linear motion components. TOYO is a leader in linear motion technology, developing custom motors for various industries and applications. We manufacture many different types of linear motors, each with its own advantages.
Brushless
DC brushless linear motors offer contactless operation and require no maintenance. They are available in two models: coreless (toothless) and cored. They can achieve high-speed and high-acceleration motion profiles. They can be driven using standard 3-phase brushless servo amplifiers.
Brushed
DC brushed linear motors are ideal for long-stroke, open-loop or closed-loop servo, linear motion applications. When coupled with a linear encoder, they can control position, speed, and acceleration with high precision.
Voice Coil
DC voice coil actuators are ideal for short-stroke (typically less than 2 inches) closed-loop servo applications. Their compact size allows them to fit into small spaces. They have very low electrical and mechanical time constants. The low moving mass enables high acceleration for light payloads. They are available in both moving coil and moving magnet models.
Linear Steppers
Linear stepper motors are used in open-loop and closed-loop positioning applications. Since the positioning device is built into the actuator and platen, no additional feedback devices are required, thereby reducing the overall cost of the system. For open-loop operation, no servo tuning is needed. Multiple grippers can operate on a single platen. They are available in single-axis and dual-axis versions.
Linear induction
Flat AC linear induction motors (LIM) usually operate directly on three-phase line voltage with adjustable frequency, and use vector drives if speed control is required. They are ideal for high-speed, long-distance applications that move heavy loads.
